head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.

Execution · Competitive PvP
Cops-and-robbers spin on Battlefield built around heists, chases, and urban shootouts.

Execution · Practiced Mastery
A back-to-basics WWII Call of Duty centered on grounded multiplayer gunfights.
Battlefield Hardline leans Execution (Competitive PvP); Call of Duty: WWII leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Battlefield Hardline
Close-quarters gunplay and high-speed vehicle chases
Call of Duty: WWII
Boots-on-ground gunskill decides most fights
Battlefield Hardline leans a little harder on reads, though the gap is small.
Battlefield Hardline
Cops-versus-criminals humans adapt heist tactics
Call of Duty: WWII
Predicting enemy pushes on lanes matters
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Battlefield Hardline
Spawns and loot grabs shuffle engagements
Call of Duty: WWII
Spawns and loot crates inject randomness
Call of Duty: WWII leans a little harder on optimization, though the gap is small.
Battlefield Hardline
Gadget loadouts and mode-specific route knowledge
Call of Duty: WWII
Division builds and map lanes are learnable
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.